CN101600771B - Pressure-sensitive adhesive composition, optical filter and plasma display panel display device using the same - Google Patents

Pressure-sensitive adhesive composition, optical filter and plasma display panel display device using the same Download PDF

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Publication number
CN101600771B
CN101600771B CN2008800038497A CN200880003849A CN101600771B CN 101600771 B CN101600771 B CN 101600771B CN 2008800038497 A CN2008800038497 A CN 2008800038497A CN 200880003849 A CN200880003849 A CN 200880003849A CN 101600771 B CN101600771 B CN 101600771B
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sensitive adhesive
methyl
pressure sensitive
adhesive composition
acrylic pressure
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CN101600771A (en
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韩仁天
朴胜骏
张锡基
成芝演
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LG Corp
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LG Chemical Co Ltd
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    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03FSEWERS; CESSPOOLS
    • E03F5/00Sewerage structures
    • E03F5/10Collecting-tanks; Equalising-tanks for regulating the run-off; Laying-up basins
    • E03F5/101Dedicated additional structures, interposed or parallel to the sewer system
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J133/00Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Adhesives based on derivatives of such polymers
    • C09J133/04Homopolymers or copolymers of esters
    • C09J133/14Homopolymers or copolymers of esters of esters containing halogen, nitrogen, sulfur or oxygen atoms in addition to the carboxy oxygen
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J135/00Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a carboxyl radical, and containing at least another carboxyl radical in the molecule, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Adhesives based on derivatives of such polymers
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J143/00Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and containing boron, silicon, phosphorus, selenium, tellurium, or a metal; Adhesives based on derivatives of such polymers
    • C09J143/02Homopolymers or copolymers of monomers containing phosphorus
    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03FSEWERS; CESSPOOLS
    • E03F5/00Sewerage structures
    • E03F5/04Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps
    • E03F5/0401Gullies for use in roads or pavements
    • E03F5/0404Gullies for use in roads or pavements with a permanent or temporary filtering device; Filtering devices specially adapted therefor
    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03FSEWERS; CESSPOOLS
    • E03F5/00Sewerage structures
    • E03F5/04Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps
    • E03F5/06Gully gratings
    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03FSEWERS; CESSPOOLS
    • E03F5/00Sewerage structures
    • E03F5/04Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps
    • E03F5/06Gully gratings
    • E03F2005/066Gully gratings with means for protecting against vandalism
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/14Layer or component removable to expose adhesive

Abstract

The present invention relates to a pressure-sensitive adhesive composition for optical filter used in Plasma Display Panel (PDP), a pressure-sensitive adhesive film, an optical filter and a PDP panel display device, using the same. More specifically, the present invention relates to a pressure-sensitive adhesive composition having a dynamic storage elastic modulus of 5*10<3>-5*10<4> Pa and a dynamic loss elastic modulus of 5*10<2>-5*10<3> Pa, at a temperature of 30 DEG C and a frequency of 0.01 Hz, and a dynamic storage elastic modulus of 8*10<3>-1*10<5> Pa and a dynamic loss elastic modulus of 1*10<3>-5*10<4> Pa, at a temperature of 30 DEG C and a frequency of 500 Hz. The pressure-sensitive adhesive according to the present invention and the optical filter applied by the adhesive comply with endurance reliability under high temperature/high humidity conditions, do not cause fine bubbles on bonding the optical filter directly to PDP and have excellent re-workability in adhering processes.

Description

The spectral filter and the plasma display panel display device of contact adhesive composition, use said composition
Technical field
The present invention relates to a kind of being used at contact adhesive composition, the pressure sensitive adhesive films of the spectral filter of Plasmia indicating panel (PDP) use and spectral filter and the PDP display device that uses said composition.More specifically; The present invention relates to a kind of pressure sensitive adhesive and the spectral filter that uses this pressure sensitive adhesive that is used for spectral filter, said pressure sensitive adhesive has excellent durable reliability, when directly being bonded to spectral filter on the PDP panel, can not cause tiny bubble and is having excellent repetition workability under the high temperature/high humidity condition.
Background technology
Recently; Along with growth to the expectation of high-fidelity/large screen television of comprising DTV; Launched research energetically in for example cathode ray tube (CRT), liquid-crystal display (LCD) and Plasmia indicating panel (PDP) field, to realize bigger display device.
Routinely, the CRT that extensively is used in the display device of television equipment has excellent resolving power and picture quality, but the defective that increases along with screen size owing to its length and weight, and it is not suitable for the giant-screen more than 40 inches.
In addition, the situation of LCD is, its have energy consumption low with the low advantage of driving voltage, but it has and is difficult to prepare the limited technological deficiency of giant-screen and visual angle.
Simultaneously, the situation of PDP is that it can be realized giant-screen and produce the product up to 60 inches in batches.In the PDP element; Go up formation subregion isolated area (partitioned barriers) at hypocoxa (lower plate); On the groove of area of isolation, form redness, green and blue fluorescent substance layer, and the electrode of the electrode of hypocoxa and upper substrate (upper plate) laterally arranges.Said upper substrate and hypocoxa are sealing and internal space fill hypocoxa and upper substrate with discharge gas.The plasma body that when making the discharge gas discharge, produces is separated with formation unit cell (unit cell) by tiny zone, and through these unit cells image is provided.
Yet, owing to provide on the electrode of signal and the whole surface that power supply is arranged on front glass, so when driving PDP, a large amount of hertzian wave of its generation is through other indicating meter.In addition, also produced near infrared ray, thereby can cause the fault of remote controllers or infrared communication port at the light of corresponding near infrared region.Simultaneously, filling discharge gas for example after Ne, Ar or the Xe, the luminous of (G) each fluorescent substance realized that three kinds of natural colored are luminous with green through the redness (R) that is caused by vacuum ultraviolet ray, blue (B).
Therefore, when the neon atom after be excited turns back to ground state, launch the red image that PDP can not clear display as a result at the about orange coloured light of neon in 590nm zone.
In order to solve these problems of Plasmia indicating panel, the spectral filter that is used for Plasmia indicating panel (below be called the spectral filter that is used for PDP) is installed in the front portion of panel assembly.If the spectral filter that is used for PDP has been installed; Then R (redness), G (green) and B (blueness) visible light see through spectral filter as originally; And the wavelength that reduces screen resolution be safran neon light and the wavelength of 590nm 800 to 1, the interior near infrared ray of 000nm scope is blocked.
In addition, above-mentioned spectral filter is used for improving the color sharpness, preventing that light is reflected and improves contrast gradient through the color compensation layer simultaneously.
Recently, use a kind of spectral filter usually, in this spectral filter, the transparent film that will be equipped with transparency conducting layer and near infrared screen layer with pressure sensitive adhesive adheres on the glass substrate.Yet the shortcoming with this spectral filter of said structure is, the gas cloud place of light between PDP and spectral filter is by reflection largely, because the reduction of contrast gradient, the picture quality of PDP is by deterioration, and limited the reduction of PDP thickness.
In order to address these problems, development and application do not use the spectral filter (hereinafter being called filter coating) of glass preparation through only using film.Because this filter coating directly adheres to the on glass of panel through pressure sensitive adhesive, so under the condition of high temperature and high humidity, need use durable reliability.In addition, be under very high speed, to carry out owing to adhere to the method for filter coating, so when adhering to filter coating, possibly produce a large amount of tiny bubbles.Therefore, need to use a kind of pressure sensitive adhesive,, in adhesion process, do not produce tiny bubble through using this pressure sensitive adhesive.In addition, owing to directly filter coating is adhered on the PDP, so, then should remove filter coating from panel if on PDP, produce defective.In this case, should repeat work for the vestige of removing pressure sensitive adhesive fully.
Therefore, be starved of a kind of pressure sensitive adhesive of exploitation, this pressure sensitive adhesive satisfies durable reliability under the high temperature/high humidity condition, but does not produce tiny bubble when filter coating is adhered to when PDP goes up, and in adhesion process, has excellent repetition workability.
Usually, be widely used as pressure sensitive adhesive based on tackiness agent of rubber, vinylformic acid or siloxanes etc.In the middle of them, because acrylic pressure-sensitive adhesive has multiple application performance, so their use is the most extensive in the high function contact adhesive composition of preparation.The physicals of this pressure sensitive adhesive receives viscoelastic effect of altitude.In order to regulate visco-elasticity, the molecular structure performance of suitable pressure sensitive adhesive, it is necessary for example constituting component, molecular weight and MWD and cross-linking density.
In multiple publication, mentioned making the physicals and technology that visco-elasticity adapts of the pressure sensitive adhesive that is used for the PDP filter coating, and in these publications, only described the structure of improvement shock-resistance.
Particularly, JP not unexamined patent discloses 2003-29645 and discloses the pressure sensitive adhesive of the shock-resistance with improvement for 2003-29644 number, and this improved shock-resistance is through the dynamic elasticity storage modulus is limited to 1Hz and 10 under 20 ℃ temperature -7The range of frequency of Hz realizes, but the item that need consider about tiny bubble when in this publication, not being described in durable reliability and the bonding of pressure sensitive adhesive under the high temperature/high humidity condition.
JP not unexamined patent discloses 2004-263084 number and discloses the pressure sensitive adhesive that is used for the PDP spectral filter, and the dynamic elasticity storage modulus of this pressure sensitive adhesive and dynamic elasticity out-of-phase modulus are limited at 1,000 to 10 under 25 ℃ temperature, in the frequency of 000Hz.Yet above-mentioned publication has also been described the purpose that visco-elasticity only is used to improve the shock-resistance of spectral filter, and does not describe the durable reliability of spectral filter film therein and produce the item of the visco-elasticity scope that tiny bubble need consider during about bonding.
JP not unexamined patent discloses the contact adhesive composition that discloses shock-resistance with improvement and excellent repetition workability for 2005-23133 number; Its performance is through under 25 ℃ temperature, the dynamic elasticity storage modulus being limited to 1; 000 to 10, realize in the frequency of 000Hz.Yet, above-mentioned publication and not mentioned and the relevant visco-elasticity of bonding filter coating time generation tiny bubble.
In addition; JP not unexamined patent discloses the contact adhesive composition that discloses shock-resistance with improvement and excellent repetition workability for 2006-171261 number, but does not provide the tiny bubble viscoelastic enlightenment relevant with durable reliability that produces when boning filter coating.
Summary of the invention
Technical scheme
Design the present invention is in order to address the above problem.An object of the present invention is to provide a kind of contact adhesive composition that is used for spectral filter, this contact adhesive composition has excellent durable reliability, in the time will directly being bonded on the Plasmia indicating panel by the blooming that film is formed, do not producing tiny bubble and is having excellent repetition workability under the high temperature/high humidity condition.
Another object of the present invention provides pressure sensitive adhesive films, spectral filter and Plasmia indicating panel (PDP) display device of the contact adhesive composition that uses above-mentioned qualification.
Description of drawings
Fig. 1 is for showing the view according to the pressure sensitive adhesive films of one embodiment of the present invention;
Fig. 2 is for showing the view according to the spectral filter of one embodiment of the present invention; With
Fig. 3 is the view according to the display panel of one embodiment of the present invention.
Embodiment
This invention is intended to realize above-mentioned purpose and the present invention relates to a kind of contact adhesive composition that this contact adhesive composition is 5 * 10 30 ℃ temperature and the dynamic elasticity storage modulus under the 0.01Hz frequency 3~5 * 10 4Pa and dynamic elasticity out-of-phase modulus are 5 * 10 2~5 * 10 3Pa, and be 8 * 10 30 ℃ temperature and the dynamic elasticity storage modulus under the 500Hz frequency 3~1 * 10 5Pa and dynamic elasticity out-of-phase modulus are 1 * 10 3~5 * 10 4Pa.
The adhesion property of pressure sensitive adhesive and its visco-elasticity are closely related.In order to prepare pressure sensitive adhesive, must regulate visco-elasticity with excellent adhesion property.Therefore, compsn according to the present invention is characterised in that visco-elasticity with optimization is with the generation of control tiny bubble and excellent durable reliability is provided.
More specifically, contact adhesive composition of the present invention is 5 * 10 30 ℃ temperature and the dynamic elasticity storage modulus under the 0.01Hz frequency 3~5 * 10 4Pa and dynamic elasticity out-of-phase modulus are 5 * 10 2~5 * 10 3Pa, and be 8 * 10 30 ℃ temperature and the dynamic elasticity storage modulus under the 500Hz frequency 3~1 * 10 5Pa and dynamic elasticity out-of-phase modulus are 1 * 10 3~5 * 10 4Pa.
Here preferred visco-elasticity is to be 6 * 10 30 ℃ temperature and the dynamic elasticity storage modulus under the 0.01Hz frequency 3~2 * 10 4Pa and dynamic elasticity out-of-phase modulus are 6 * 10 2~4 * 10 3Pa, and be 9 * 10 30 ℃ temperature and the dynamic elasticity storage modulus under the 500Hz frequency 3~8 * 10 4Pa and dynamic elasticity out-of-phase modulus are 2 * 10 3~4 * 10 4Pa.
Here preferred visco-elasticity is to be 7 * 10 30 ℃ temperature and the dynamic elasticity storage modulus under the 0.01Hz frequency 3~1 * 10 4Pa and dynamic elasticity out-of-phase modulus are 7 * 10 2~3 * 10 3Pa, and be 1 * 10 30 ℃ temperature and the dynamic elasticity storage modulus under the 500Hz frequency 4~5 * 10 4Pa and dynamic elasticity out-of-phase modulus are 3 * 10 3~2 * 10 4Pa.
If the dynamic elasticity storage modulus under 30 ℃ temperature and 0.01Hz frequency is less than 5 * 10 3Pa, then the durable reliability under the high temperature/high humidity condition is not enough.If it surpasses 5 * 10 4Pa is then when directly being bonded to compsn on the PDP, because impaired at the interface wettability is difficult to obtain enough cohesive strengths.In addition, if the dynamic elasticity storage modulus under the 500Hz frequency less than 8 * 10 3Pa, then durable reliability is not enough.If it surpasses 1 * 10 5Pa then when spectral filter being adhered to Plasmia indicating panel (PDP) last time, produces a large amount of tiny bubbles.
Simultaneously, if in 30 ℃ temperature and the dynamic elasticity out-of-phase modulus under the 0.01Hz frequency less than 5 * 10 2Pa, then durable reliability is not enough.If it surpasses 5 * 10 3Pa, it is poor then to repeat workability.In addition, if the dynamic elasticity out-of-phase modulus under the 500Hz frequency less than 1 * 10 3Pa then can not obtain enough cohesive strengths, thereby produces the phenomenon that spectral filter departs from panel.If it surpasses 5 * 10 4Pa then produces the problem of repetition workability difference.
Hereinafter, with illustrated in detail the present invention.
As long as contact adhesive composition of the present invention has the dynamic elasticity storage modulus and the dynamic elasticity out-of-phase modulus of above-mentioned scope, just can use it and do not limit.Here in the available contact adhesive composition; Applied optics is gone up all bonding or matrix materials that use ad lib; For example based on the material of vinylformic acid, siloxanes, rubber, urethanum, polyester or epoxy, but in the middle of their preferred acrylic pressure-sensitive adhesive.
Preferably, said acrylic pressure-sensitive adhesive comprises acrylic copolymer, and said acrylic copolymer contains (methyl) acrylate monomer of the alkyl with 1 to 12 carbon atom of 90 to 99.9 weight parts; With the vinyl monomer that comprises acidic group of 0.1 to 10 weight part or the vinyl monomer that comprises hydroxyl of 0.01 to 5 weight part.
When the alkyl of (methyl) acrylate monomer of said alkyl with 1 to 12 carbon atom was long-chain shape, the cohesive strength of pressure sensitive adhesive was lowered.Therefore, in order to keep the cohesive strength under the high temperature, more preferably select carbonatoms in the alkyl in 2 to 8 scope.Particularly, available use is selected from by in (methyl) methyl acrylate, (methyl) ethyl propenoate, (methyl) vinylformic acid n-propyl, (methyl) isopropyl acrylate, (methyl) n-butyl acrylate, (methyl) tert-butyl acrylate, (methyl) sec-butyl acrylate, (methyl) vinylformic acid pentyl ester, (methyl) acrylic acid-2-ethyl butyl ester, (methyl) ethyl acrylate, (methyl) vinylformic acid n-octyl, (methyl) Isooctyl acrylate monomer and (methyl) vinylformic acid group that ester is formed the different ninth of the ten Heavenly Stems one or more.
If the content of said (methyl) acrylate monomer is less than 90 weight parts, then can there be the problem of initial adherence property reduction.If it surpasses 99.9 weight parts, then possibly cause cohesive failure during elevated temperature.
The vinyl monomer that comprises acidic group that here uses is a kind of component, and this component is used for giving the pressure sensitive adhesive cohesive strength with the linking agent reaction and through chemical bond, so that the cohesive failure of tackiness agent does not take place during elevated temperature.
The said vinyl monomer that comprises acidic group can comprise and is selected from by the copolymerisable monomer that contains carboxyl or its acid anhydrides, contains sulfonic copolymerisable monomer and contain in the group that the copolymerisable monomer of phosphate forms one or more.
The said copolymerisable monomer that contains carboxyl is (methyl) vinylformic acid, vinylformic acid carboxylic ethyl ester, vinylformic acid carboxylic pentyl ester, methylene-succinic acid, toxilic acid, fumaric acid or Ba Dousuan;
The said acid anhydrides that contains the copolymerisable monomer of carboxyl is maleic anhydride or itaconic anhydride;
It is said that to contain sulfonic copolymerisable monomer be styrene sulfonic acid, allyl sulphonic acid, 2-(methyl) acrylic amide-2-methyl propane sulfonic acid, (methyl) acrylic amide propane sulfonic acid, (methyl) vinylformic acid sulfonic acid propyl ester, (methyl) acryloxy naphthene sulfonic acid ((meth) acryloyloxy naphthale sulfonic acid); And
The said copolymerisable monomer that contains phosphate can be selected from phosphoric acid acryloyl 2-hydroxyl ethyl ester etc., but is not limited thereto.
With respect to the total amount of acrylic copolymer, the said content that comprises the vinyl monomer of acidic group is preferably 0.1 to 10 weight part.If its content is less than 0.1 weight part, cohesive failure then takes place during elevated temperature easily.If its content surpasses 10 weight parts, then the flow characteristics during high temperature is lowered.
In addition, the vinyl monomer that comprises hydroxyl is a kind of component, and this component is separately through chemical bond or through giving the pressure sensitive adhesive cohesive strength with linking agent reaction, so that the cohesive failure of tackiness agent does not take place during elevated temperature.
In addition, the vinyl monomer that comprises hydroxyl for example includes, but not limited to, (methyl) vinylformic acid-2-hydroxyl ethyl ester, (methyl) vinylformic acid-2-hydroxypropyl acrylate, (methyl) vinylformic acid-2-hydroxyl glycol ester, (methyl) vinylformic acid-2-hydroxypropyl diol ester and its mixture.
With respect to the total amount of acrylic copolymer, the said content that comprises the vinyl monomer of hydroxyl is preferably 0.01 to 5 weight part.If its content is less than 0.01 weight part, cohesive failure then takes place during elevated temperature easily.If its content surpasses 5 weight parts, then the flow characteristics during high temperature is lowered.
For the second-order transition temperature of regulating pressure sensitive adhesive or the functional of other is provided, if necessary, with respect to the weight of total monomer, preferred acrylic copolymer further comprises the functional monomer of the general formula 1 of 0 to 20 weight part.
Figure G2008800038497D00061
Wherein,
R 4The expression hydrogen or alkyl,
R 3Expression cyanic acid, unsubstituted or with the substituted phenyl of alkyl, acetoxyl group (acetyloxy) or COR 5, R wherein 5Represent unsubstituted or substituted amino of alkyl or glycidyl oxygen base (glycidyloxy).
In above-mentioned general formula, to R 3To R 5Qualification in alkyl preferably be expressed as the low-carbon alkyl of 1~6 carbon atom, and more preferably methyl or ethyl.
The examples for compounds of said general formula 1 expression can include but not limited to styrene monomer, like vinylbenzene or alpha-methyl styrene; Vinyl carboxylates is like vinyl-acetic ester; The monomer that perhaps contains nitrogen is like vinyl cyanide, (methyl) acrylic amide, N-methyl (methyl) acrylic amide, N-butoxymethyl (methyl) acrylic amide or (methyl) glycidyl acrylate.Said monomer can use separately or with its form of mixtures.
If the content of the functional monomer of said general formula 1 expression is too high, then the flexibility of pressure sensitive adhesive and stripping strength can reduce.Therefore, preferred 20 weight parts that are lower than the total monomer composition that use.
Preferably, with respect to 100 parts by weight of acrylic based copolymers, further comprise 0.01~10 parts by weight of cross-linking agent according to acrylic pressure-sensitive adhesive of the present invention.Said linking agent keeps the cohesive strength of pressure sensitive adhesive when elevated temperature through forming crosslinking structure, thereby be used to improve adhesion reliability.
Kind to said linking agent is not particularly limited, but it can adopt and is selected from the group of being made up of isocyanate compound, epoxy compounds, aziridine cpd and metallo-chelate one or more.
Said isocyanate compound is preferably one or more polyfunctional isocyanate's compounds that are selected from the group of being made up of the reactant of tolylene diisocyanate, xylene diisocyanate, '-diphenylmethane diisocyanate, hexamethylene diisocyanate, isomery vulcabond (isoformdiisocyanate), tetramethylxylene diisocyanate, naphthalene diisocyanate and itself and polyvalent alcohol (TriMethylolPropane(TMP) etc.).
Said epoxy compounds is preferably dihydroxyphenyl propane-epoxy chloropropane type epoxy resin, ethylene glycol diglycidylether, polyethyleneglycol diglycidylether, triglycidyl ether, glycerin diglycidyl ether, T 55,1,6-hexanediol diglycidyl ether, trihydroxymethylpropanyltri diglycidyl ether, diglycidylether aniline, N, N; N ', N '-four glycidyl group m-xylene diamine, N, N; N '; N '-four glycidyl group quadrol or N, N, N '; N '-four glycidyl group-1,3-YLENE.
Said aziridine cpd can be to be selected from by N; N '-Toluene-2,4-diisocyanate; 4-two (1-Soluol XC 100 carboxide), N; In the group that N '-ditane-4,4 '-two (1-Soluol XC 100 carboxide), triethylene trimeric cyanamide, two isophthaloyl-1-(2-methylaziridine) (bisisoprothaloyl-1-(2-methylaziridine)) and three-1-aziridinyl phosphine oxide are formed one or more, and
Said metallo-chelate can use, but is not limited to, and for example is selected from the compound that forms like the polyvalent metal of aluminium, iron, zinc, tin, antimony, magnesium and vanadium and methyl ethyl diketone or methyl aceto acetate coordination one or more.
Particularly, isocyanate functional group's crosslinking reaction does not preferably take place in said polyfunctional isocyanate's linking agent, to implement uniform application job.And, after accomplishing this application job, carry out drying and aging step subsequently, along with forming crosslinking structure, can obtain to have the pressure sensitive adhesive layer that improves force of cohesion.So, but the strong force of cohesion of pressure sensitive adhesive has improved the bond property and cutting (cuttability) that adheres to product.
With respect to 100 parts by weight of acrylic based copolymers, be preferably 0.01 to 10 weight part at the content of the said linking agent of this use.If its content is less than 0.01 weight part, react hardly to such an extent as to then content is too low.If its content surpasses 10 weight parts, the over-drastic crosslinking reaction then takes place internal layer is peeled off, thereby weather resistance is considerably low.
Preferably, the cross-linking density according to acrylic copolymer of the present invention is 1 to 95%.When cross-linking density is too low, cause the Young's modulus of pressure sensitive adhesive too low, interlayer produces bubble and forms scattering object under the condition of high temperature.When long-time use has the pressure sensitive adhesive of high elastic coefficient too, because the over-drastic crosslinking reaction causes internal layer to peel off phenomenon.In addition, the visco-elasticity of pressure sensitive adhesive mainly depends on molecular weight, MWD or the molecular structure of polymer chain, and is determined by molecular weight especially.Therefore, be preferably 600,000 to 2,000,000 in the weight-average molecular weight of the acrylic copolymer of this use, and can regulate through common radical copolymerization method.If the molecular weight of multipolymer is less than 600,000, then the cohesive strength of pressure sensitive adhesive is too low.If this molecular weight is greater than 2,000,000, then adhesion property is not enough.
In the present invention, acrylic copolymer can be through the preparation of following polymerization method, for example solution polymerization process, light polymerization method, mass polymerization, suspension polymerization or emulsion polymerization, and more preferably solution polymerization process.At this moment, polymeric reaction temperature is 50 to 140 ℃.Preferably under the state that monomer mixes, add initiator.The acrylic pressure sensitive adhesive resin composition of the present invention that is used for spectral filter also can prepare through the light polymerization method of selecting generally well-known appropriate light initiator.
The silane coupling agent that in addition, can further comprise 0.01 to 10 weight part according to acrylic pressure-sensitive adhesive of the present invention is to improve adhesion durability.Said silane coupling agent is used under the high temperature/high humidity condition, producing bubble or peeling off and improve durable reliability preventing through improving adhesion strength with heat in time.Said silane coupling agent can use and be selected from by β-(3; The 4-epoxycyclohexyl), in the group formed of γ-Huan Yangbingyangbingjisanjiayangjiguiwan (γ-glycydoxypropyl trimethoxysilane), γ-epoxypropoxy methyldiethoxysilane, γ-epoxypropoxy triethoxyl silane, 3-mercaptopropyltrimethoxy silane, vinyltrimethoxy silane, vinyltriethoxysilane, γ-methacryloxypropyl trimethoxy silane, γ-methacryloxypropyl triethoxyl silane, γ-An Bingjisanyiyangjiguiwan, 3-isocyanic ester propyl-triethoxysilicane and γ-etheric acid propyl trimethoxy silicane one or more, but be not limited thereto.
With respect to 100 parts by weight of acrylic based copolymers, the content of said silane coupling agent is preferably 0.01 to 10 weight part.If it is its content is less than 0.01 weight part, then less with the raising of the hot adhesion strength that causes by the time.If its content above 10 weight parts, then causes quite serious bubble owing to excessive use or peels off, thereby the problem that has durable reliability to reduce.
In addition, with respect to 100 parts by weight of acrylic based copolymers, the tackifier resins that preferably further comprises 1 to 100 weight part according to pressure sensitive adhesive of the present invention is to regulate adhesive efficiency.When the excessive use of said composition, the cohesive strength of pressure sensitive adhesive possibly reduce.Therefore, preferably its amount that comprises is suitable.Said tackifier resins can use (hydrogenation) hydrocarbon resin, (hydrogenation) Gum Rosin, (hydrogenation) rosin ester resin, (hydrogenation) terpine resin, (hydrogenation) terpene-phenolic resin, polymerized rosin resin or polymerized rosin ester resin etc.
In addition, if desired, also can use additive, for example near infrared absorbent, epoxy resin, stiffening agent, softening agent, UV stabilizer, inhibitor, tinting material, toughener or filler in addition according to contact adhesive composition of the present invention.
The present invention also relates to a kind of pressure sensitive adhesive films, it comprises stripping film (release film); And pressure sensitive adhesive layer, this pressure sensitive adhesive layer forms on said stripping film, and contains contact adhesive composition according to the present invention.
As the basilar membrane of said stripping film, can use plastic film, for example polyethylene terephthalate film, poly tetrafluoroethylene, polyethylene film, polypropylene screen, polybutylenes film, polyhutadiene film, vinyl chloride copolymer film or polyimide film.In addition, preferably with the surface of for example handling said basilar membrane based on the stripper of the stripper of alkyd, siloxanes, fluorine, unsaturated ester, polyolefine or wax.Especially, owing to have thermotolerance based on the stripper of alkyd, siloxanes or fluorine etc., preferably they are as stripper.
The thickness of said basilar membrane is generally 10~500 μ m, is preferably 20~200 μ m.
In addition, if do not damage high transparent, do not limit the thickness of coating and exsiccant pressure sensitive adhesive layer especially, but the scope that is fit to is 1~200 μ m.
Said pressure sensitive adhesive films can multiple shape be used.Explain an one of which instance with reference to Fig. 1 below.Pressure sensitive adhesive films of the present invention can adopt following form, wherein first and second stripping films 11 is sticked on two surfaces of pressure sensitive adhesive layer 12.In this case, after first stripping film 11 of the first surface that will adhere to pressure sensitive adhesive layer 12 is peeled off, binder layer 12 is transferred to first adherend, for example polaroid or spectral filter.Then, after second stripping film 11 of the second surface that will adhere to binder layer 12 is peeled off, can be through pressure sensitive adhesive layer 12 with second adherend, for example display apparatus module etc. adheres to first adherend.
The present invention also relates to a kind of spectral filter, this spectral filter comprises the pressure sensitive adhesive layer that contains contact adhesive composition according to the present invention.
Hereinafter, will explain an instance of spectral filter of the present invention with reference to Fig. 2.
Spectral filter preferably according to the present invention has following structure; Wherein at transparency carrier 21 laminated antireflective light-transmissive films (AR film) 22; And lamination near infrared sealing coat (NIR) 23, removal rainbow (neon-cut) (color compensation, selectivity absorbs) film 24 and electromagnetic interference film (EMI film) 25 etc. at the back side of transparency carrier 21.
As the antireflective light-transmissive film 22 of forming spectral filter, near infrared sealing coat (NIR) 23, removal rainbow (color compensation; Selectivity absorbs) film 24 and electromagnetic interference film (EMI film) 25; Can use the conventional film and the layer that use in the affiliated field of the present invention, and not have special the qualification.Certainly, in order to obtain other function, except above-mentioned film, can comprise film in addition with multiple function.
Spectral filter according to the present invention has pressure sensitive adhesive layer, and this pressure sensitive adhesive layer comprises according to contact adhesive composition of the present invention and is formed on the surface or two surfaces of above-mentioned spectral filter.In addition, binder layer can be formed between the rete of above-mentioned spectral filter.
The present invention also relates to a kind of Plasmia indicating panel (PDP) display device, it comprises plasma display module; With spectral filter according to the present invention.
Also not special qualification of plasma display module of forming PDP display device of the present invention.To explain an instance of plasma display module hereinafter with reference to Fig. 3.
The plasma display module of forming PDP display device of the present invention can comprise ITO (indium-Xi-oxide compound) electrode (keeping/scan electrode) 41 that is used for producing and keeping at discharge chamber discharge; Be used for BUS (confluxing) electrode 42 that compensates at the quite high resistance of transparency electrode; The transparent dielectric layer 61 that is used to limit discharging current and compiles the wall electric charge; Be used to prevent that transparent dielectric layer receives the resist (MgO) 43 of bombardment by ions; Addressing electrode (address electrode) 44 and the lower dielectric layer 62 that is used to protect addressing electrode; Barrier (barrier rib) 52 forms this barrier 52 and is and is used in each discharge chamber, guaranteeing certain discharge space and separates R, G and B fluorescent substance and be mixed with each other to prevent fluorescent substance; With fluorescent substance 51, it is used for (vacuum) ultraviolet ray through the discharge emission is converted into visible light (R, G and B) and sends visible light.
Simultaneously; Except high performance display device; Can be used to laminated product according to acrylic pressure sensitive adhesive resin composition of the present invention; For example polaroid has added the film of optical function, or be used for the optical modulation film of modulated optical characteristic and comprise reflector plate, structure bond sheet, the adhesive sheet of taking a picture, the adhesive sheet that is used for mark traffic track, optical bonding product, be used for electronic component pressure sensitive adhesive materials etc. industrial sheet material and use restriction.
Embodiment
The preferred embodiment of the invention and comparative example have been described hereinafter.Embodiment below describing and comparative example are more to clearly illustrate content of the present invention.But content of the present invention is not limited to following embodiment.
Embodiment 1
( The preparation of acrylic copolymer)
To volume is 1,000cc and be equipped with the cooling system that is used for nitrogen reflux and easily the reactor drum of attemperation add monomer mixture, this monomer mixture is made up of positive butyl ester of 94 parts by weight of acrylic (BA) and 6 parts by weight of acrylic.The ETHYLE ACETATE (EAc) that in reactor drum, adds 100 weight parts then is as solvent.In order to remove oxygen,, and temperature remained on 60 ℃ with nitrogen purging reactor drum 20 minutes.After making mixture homogenization, what in mixture, add 0.03 weight part is diluted to 50% Diisopropyl azodicarboxylate (AIBN) as reaction initiator with ETHYLE ACETATE.Making mixture reaction 8 hours is 1,800,000 acrylic copolymer with the preparation molecular weight.
( The preparation of acrylic pressure-sensitive adhesive)
N with 0.03 weight part as epoxy crosslinking agent; N; N ', N '-four glycidyl group-1, the tolylene diisocyanate adducts as the TriMethylolPropane(TMP) of polyfunctional isocyanate's linking agent of 3-YLENE and 0.2 weight part is diluted to 10 weight % with ethyl acetate solution respectively.Epoxy crosslinking agent and polyfunctional isocyanate's linking agent are joined in the acrylic copolymer of above-prepared of 100 weight parts.
Then, based on applying character, with mixture diluted to suitable concentration and uniform mixing.The product that obtains is coated on the stripping film, and applied thickness is 38 μ m, and drying is the uniform pressure sensitive adhesive layer of 25 μ m with preparation thickness.
( The measurement of dynamic elasticity storage modulus and dynamic elasticity out-of-phase modulus)
Measure the dynamic elasticity storage modulus and the dynamic elasticity out-of-phase modulus of pressure sensitive adhesive with the ARES of TA company.Use the parallel plate fixture of diameter as 8mm; At thickness of sample is that 1mm and deformation rate are frequently to scrape under 10% the condition to sweep pressure sensitive adhesive, under the frequency of 30 ℃ temperature and 0.01Hz and 500Hz, measures dynamic elasticity storage modulus and dynamic elasticity out-of-phase modulus respectively then.
( Lamination)
The pressure sensitive adhesive layer of above-prepared is adhered to the spectral filter that is used for PDP, handle then.The spectral filter that obtains is cut into suitable size and in evaluation method, uses.Spectral filter to having applied pressure sensitive adhesive carries out following evaluation, and its result is shown in the following table 1.
Embodiment 2
Except with the 2-hydroxyethyl methacrylate (2-HEMA) of the positive butyl ester of 97 parts by weight of acrylic (BA), 2 weight parts and 1 parts by weight of acrylic (AA) as the monomer mixture in the foregoing description 1; To prepare molecular weight with the foregoing description 1 identical method is 1; 500; 000 acrylic copolymer is estimated it then.
Embodiment 3
Except with the positive butyl ester of 88 parts by weight of acrylic (BA), 8 parts by weight of acrylic ethyl esters (EA) and 4 parts by weight of acrylic (AA) as the monomer mixture in the foregoing description 1; To prepare molecular weight with the foregoing description 1 identical method is 1; 200; 000 acrylic copolymer is estimated it then.
Comparative example 1
Except with the TEB 3K (MMA) of the positive butyl ester of 64 parts by weight of acrylic (BA), 30 weight parts and 6 parts by weight of acrylic as the monomer mixture in the foregoing description 1; To prepare molecular weight with the foregoing description 1 identical method is 1; 700; 000 acrylic copolymer is estimated it then.
Comparative example 2
Except with the positive butyl ester of 80 parts by weight of acrylic (BA), 19 parts by weight of acrylic-2-ethylhexyl ester (EHA) and 1 parts by weight of acrylic as the monomer mixture in the foregoing description 1; To prepare molecular weight with the foregoing description 1 identical method is 1; 300; 000 acrylic copolymer is estimated it then.
Comparative example 3
Except with the positive butyl ester of 90 parts by weight of acrylic (BA), 10 parts by weight of acrylic methyl esters (MA) and 1 parts by weight of acrylic as the monomer mixture in the foregoing description 1; To prepare molecular weight with the foregoing description 1 identical method is 550; 000 acrylic copolymer is estimated it then.
[EXPERIMENTAL EXAMPLE]
Applied the evaluation of tiny bubble of the spectral filter of pressure sensitive adhesive on it
(885mm * 498mm) adhere on the PDP is at the pressure sensitive adhesive that has applied preparation in embodiment 1 on the said spectral filter with spectral filter in the decontamination chamber for the applied layer press.After adhering to, through the tiny bubble of observation by light microscope.The judgement criteria of the generation of tiny bubble is following during about bonding:
Zero: do not observe tiny bubble;
△: produced tiny bubble slightly;
*: produced a large amount of tiny bubbles.
The evaluation of durable reliability
In order to learn the moisture-resistant-heat durability that adheres to the spectral filter on the PDP, it is 90% condition held 1,000 hour with relative humidity that the PDP that has adhered to spectral filter is 60 ℃ in temperature, observes then, produces bubble or peels off determining whether.And, in order to estimate the heat resistanceheat resistant weather resistance, be 80 ℃ condition held 1,000 hour in temperature with the PDP that has adhered to spectral filter, observe then to determine whether to produce bubble or peeling off phenomenon.Judgement criteria about durable reliability is following:
Zero: do not observe bubble or peel off phenomenon;
△: produced bubble seldom or phenomenon taken place to peel off;
*: produced a large amount of bubbles or phenomenon has taken place to peel off.
Repeat the evaluation of workability
Through laminating machine with spectral filter (400mm * 300mm) adhere on the glass substrate, then with it 50 ℃ temperature held 4 hours, peel off spectral filter from glass substrate afterwards.Judgement criteria about repeating workability is following:
Zero: do not observe adhesive residue;
△: the little binder residue occurs;
*: a large amount of adhesive residue appear.
Table 1
As above shown in the result in the table 1, can draw, when the spectral filter that will be used for PDP directly adheres to PDP when going up, the PSA of the embodiment of the invention 1 to 3 does not produce tiny bubble, and demonstrates and obtained excellent durable reliability and repeated workability.Yet the PSA of comparative example 1 has produced a large amount of tiny bubbles and has shown the workability of difference, and the PSA of comparative example 2 does not produce tiny bubble, but has shown the durable reliability of difference.In addition, to have used molecular weight be the PSA of the comparative example 3 of 550,000 the acrylic copolymer durable reliability that shown difference with repeat workability.
Industrial applicibility
Pressure sensitive adhesive of the present invention has durable reliability with the spectral filter that is used for PDP that uses this pressure sensitive adhesive under the high temperature/high humidity condition; And in adhering step, have excellent repetition workability, and when directly adhering to spectral filter on the PDP, do not produce tiny bubble.
Although described the present invention, it should be understood that those skilled in the art can make other improvement and the enforcement in a large amount of essence that falls into disclosure principle and the scope with reference to preferred implementation of the present invention.More specifically, can be in the multiple variation and the improvement of making in present disclosure, accompanying drawing and the appended claims scope that be provided with of componentry and/or main combining and configuring.Except at componentry and/or variation that is provided with and improvement, to one skilled in the art, the application of alternative also is tangible.

Claims (20)

1. acrylic pressure sensitive adhesive composition, said composition comprises acrylic copolymer, and this acrylic copolymer contains (methyl) acrylate monomer of the alkyl with 1 to 12 carbon atom of 90 to 99.9 weight parts; With the vinyl monomer that comprises acidic group of 0.1 to 10 weight part or the vinyl monomer that comprises hydroxyl of 0.01 to 5 weight part, and said composition is 5 * 10 30 ℃ temperature and the dynamic elasticity storage modulus under the 0.01Hz frequency 3~5 * 10 4Pa and dynamic elasticity out-of-phase modulus are 5 * 10 2~5 * 10 3Pa, and be 8 * 10 30 ℃ temperature and the dynamic elasticity storage modulus under the 500Hz frequency 3~1 * 10 5Pa and dynamic elasticity out-of-phase modulus are 1 * 10 3~5 * 10 4Pa.
2. acrylic pressure sensitive adhesive composition according to claim 1; Wherein, (methyl) acrylate monomer of said alkyl with 1 to 12 carbon atom is for being selected from (methyl) methyl acrylate, (methyl) ethyl propenoate, (methyl) vinylformic acid n-propyl, (methyl) isopropyl acrylate, (methyl) n-butyl acrylate, (methyl) tert-butyl acrylate, (methyl) sec-butyl acrylate, (methyl) vinylformic acid pentyl ester, (methyl) acrylic acid-2-ethyl butyl ester, (methyl) ethyl acrylate, (methyl) vinylformic acid n-octyl, (methyl) Isooctyl acrylate monomer and (methyl) vinylformic acid ester in the different ninth of the ten Heavenly Stems one or more.
3. acrylic pressure sensitive adhesive composition according to claim 1; Wherein, the said vinyl monomer that comprises acidic group is to be selected from the copolymerisable monomer or its acid anhydrides that contain carboxyl, to contain sulfonic copolymerisable monomer and to contain in the copolymerisable monomer of phosphate one or more.
4. acrylic pressure sensitive adhesive composition according to claim 3, wherein, the said copolymerisable monomer that contains carboxyl is (methyl) vinylformic acid, vinylformic acid carboxylic ethyl ester, vinylformic acid carboxylic pentyl ester, methylene-succinic acid, toxilic acid, fumaric acid or Ba Dousuan;
The said acid anhydrides that contains the copolymerisable monomer of carboxyl is maleic anhydride or itaconic anhydride;
It is said that to contain sulfonic copolymerisable monomer be styrene sulfonic acid, allyl sulphonic acid, 2-(methyl) acrylic amide-2-methyl propane sulfonic acid, (methyl) acrylic amide propane sulfonic acid, (methyl) vinylformic acid sulfonic acid propyl ester or (methyl) acryloxy naphthene sulfonic acid; And
The said copolymerisable monomer that contains phosphate is a phosphoric acid acryloyl 2-hydroxyl ethyl ester.
5. acrylic pressure sensitive adhesive composition according to claim 1; Wherein, the said vinyl monomer that comprises hydroxyl is for being selected from (methyl) vinylformic acid-2-hydroxyl ethyl ester, (methyl) vinylformic acid-2-hydroxypropyl acrylate, (methyl) vinylformic acid-2-hydroxyl glycol ester, (methyl) vinylformic acid-2-hydroxypropyl diol ester and its mixture one or more.
6. acrylic pressure sensitive adhesive composition according to claim 1, wherein, with respect to the weight of total monomer, said acrylic copolymer further comprises the functional monomer of the general formula 1 of 0 to 20 weight part:
Figure FSB00000692911400021
Wherein,
R 4The expression hydrogen or alkyl, and
R 3Expression cyanic acid, unsubstituted or with the substituted phenyl of alkyl, acetoxyl group or COR 5, R wherein 5Represent unsubstituted or with substituted amino of alkyl or glycidyl oxygen base.
7. acrylic pressure sensitive adhesive composition according to claim 1, wherein, with respect to the said acrylic copolymer of 100 weight parts, said acrylic pressure-sensitive adhesive further comprises 0.01~10 parts by weight of cross-linking agent.
8. acrylic pressure sensitive adhesive composition according to claim 7, wherein, said linking agent is to be selected from isocyanate compound, epoxy compounds, aziridine cpd and the metallo-chelate one or more.
9. acrylic pressure sensitive adhesive composition according to claim 8; Wherein, Said isocyanate compound is one or more polyfunctional isocyanate's compounds that are selected from the reactant of tolylene diisocyanate, xylene diisocyanate, '-diphenylmethane diisocyanate, hexamethylene diisocyanate, isomery vulcabond, tetramethylxylene diisocyanate, naphthalene diisocyanate and itself and polyvalent alcohol.
10. acrylic pressure sensitive adhesive composition according to claim 8; Wherein, said epoxy compounds is for being selected from dihydroxyphenyl propane-epoxy chloropropane type epoxy resin, ethylene glycol diglycidylether, polyethyleneglycol diglycidylether, glycerin diglycidyl ether, T 55,1,6-hexanediol diglycidyl ether, trihydroxymethylpropanyltri diglycidyl ether, diglycidylether aniline, N; N; N ', N '-four glycidyl group m-xylylenediamine or N, N; N ', one or more in N '-four glycidyl group quadrol.
11. acrylic pressure sensitive adhesive composition according to claim 1, wherein, the cross-linking density of said acrylic copolymer be 1 to 95% and weight-average molecular weight be 600,000 to 2,000,000.
12. contact adhesive composition according to claim 1, wherein, said acrylic pressure-sensitive adhesive further comprises the silane coupling agent of 0.01 to 10 weight part.
13. acrylic pressure sensitive adhesive composition according to claim 12; Wherein, said silane coupling agent is to be selected from γ-Huan Yangbingyangbingjisanjiayangjiguiwan, γ-epoxypropoxy methyldiethoxysilane, γ-epoxypropoxy triethoxyl silane, 3-mercaptopropyltrimethoxy silane, vinyltrimethoxy silane, vinyltriethoxysilane, γ-methacryloxypropyl trimethoxy silane, γ-methacryloxypropyl triethoxyl silane, γ-An Bingjisanyiyangjiguiwan, 3-isocyanic ester propyl-triethoxysilicane and the γ-etheric acid propyl trimethoxy silicane one or more.
14. acrylic pressure sensitive adhesive composition according to claim 1, wherein, with respect to the said acrylic copolymer of 100 weight parts, said acrylic pressure-sensitive adhesive further comprises the tackifier resins of 1 to 100 weight part.
15. acrylic pressure sensitive adhesive composition according to claim 14; Wherein, said tackifier resins is for being selected from (hydrogenation) hydrocarbon resin, (hydrogenation) Gum Rosin, (hydrogenation) rosin ester resin, (hydrogenation) terpine resin, (hydrogenation) terpene-phenolic resin, polymerized rosin resin and the polymerized rosin ester resin one or more.
16. acrylic pressure sensitive adhesive composition according to claim 1; Wherein, said acrylic pressure-sensitive adhesive further comprises one or more additives that are selected near infrared absorbent, epoxy resin, stiffening agent, softening agent, UV stabilizer, inhibitor, tinting material, toughener and the filler.
17. a pressure sensitive adhesive films, it comprises
Stripping film; With
Pressure sensitive adhesive layer, this pressure sensitive adhesive layer forms on said stripping film, and contains each described acrylic pressure sensitive adhesive composition in the with good grounds claim 1 to 16.
18. a spectral filter, it comprises the pressure sensitive adhesive layer that contains each described acrylic pressure sensitive adhesive composition in the with good grounds claim 1 to 16.
19. spectral filter according to claim 18, it further comprises
Transparency carrier;
The antireflective light-transmissive film (AR film) that on a surface of said transparency carrier, forms; With
At the near infrared sealing coat (NIR) of another surperficial laminated of said transparency carrier, remove rainbow film and electromagnetic interference film.
20. a Plasmia indicating panel (PDP) display device, it comprises
Plasma display module; With
Spectral filter according to claim 18.
CN2008800038497A 2007-02-02 2008-01-17 Pressure-sensitive adhesive composition, optical filter and plasma display panel display device using the same Active CN101600771B (en)

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